With the French Flying Corps

With the French Flying Corps

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"[...]aeroplanes come too near to each other the suction of their propellers pulls them together and they become uncontrollable. That is what happened to these two unfortunate "eleves." The officer in charge of the school explained at length just how this accident happened. We were cautioned against overlooking the fact that the speed of an aeroplane is always spoken of in reference to the body of the air in which the machine is moving. Thus an aeroplane travelling eighty miles an hour with a twenty-mile breeze is travelling at a speed of a hundred miles an hour in reference to the ground. The two machines at the time of the accident were flying east and west, but, while both were travelling at the same speed with reference to the ground, the plane moving in the direction of the wind was making about ninety miles an hour, while the other was covering barely fifty miles at the same time. The speed at which they were approaching one another[...].""show more

Product details

  • Paperback | 74 pages
  • 152.4 x 228.6 x 3.56mm | 140.61g
  • Createspace
  • United States
  • English
  • black & white illustrations
  • 1507539142
  • 9781507539149